Tank-car.



L. IVI. DE MERITT &1. H. ZINK.`

TANK CAR.

APPUcATloN mso Dc.22, 1915.

Iatnted Ang. 21, 1917.

-unrTin) sTATEs PATENT oFFroEi.;

LEONARD vlillf. DE MERITT AND J'OITIN H. ZINK, 0F BALTIMORE, MARYLAND.

:rinvii-0.1m.I

Specieation of Letters Patent. fatented Aug'.'21', 1917-.

Application led December 22, 1915. Serial No. 68,268.

To all whom it may concern:

Be it known that we, LEONARD M. DE MmuTT and JOHN H. ZINK, citizens of the United States, residing at Baltimore city and State of Maryland, have invented certain new and useful Improvements in Tank- Cars, of which the followingis a specifica-v `employing such heating systems free from employment, and consists, A in one specific form, of the combination and leaks due to such arrangement of part-s herein shown and described, the novel Afeatures being more particularly pointed out in the accompanying claim. j

In order to more fully describe our inyenticn, reference will be had to the accompanying drawings in which,

Figure 1, is a central longitudinal vertical section of a tank car equipped with one form of our invention;

Fig. 2, a section on line :2X-2X, Fig. 1;

Fig. 3, an enlarged detail vertical section of one of the stufling boxes for the heating coils; p I

Fig. 4, a fragmentary detail sectional view showing one of the supporting frames at the ends of the coils.

Referring to the accompanying drawings, 1 represents a tank, and Qthetank supporting structure of a tank car of the type hereinbefore referred to, andthe outlet through which the contents of the tank are withdrawn.

Within this tank are located two heating coils 4 and 5, on opposite sides of the tank. These coils are continuous within the tank; that is to say, they are of continuous or integral material and are entirely free of `may be welded.

joints in the ordinary sense. If provided with couplings such as 6, these couplings are welded to the pipe sections proper sothat they really become an integral partof the coil. By electrical welding processes now in common use, such welding may be readily eifected. The ends of the coils cxtend through the bottom of the tank and terminate entirely outside thereof, such ends being provided with stuffing boxes '7, whereby leakage of the contents of the tank around the pipes at these points is prevented. The arrows at the ends of the heating coils beneath the tank in Fig. 1 indicate the inlets and outlets respectively. These coils are rigidly supported adjacent the stufling boxes in supports S, comprising flanged plates of U-shaped cross-section rigidly secured to the tankl and having slots l) in which the coils fit., and to which the .saine Such rigid support prevents relative movement between the endsI of the heating coils and t-he tank.

The coils are supported near the ends of the tank in frames 10 consisting each of a bracket 11 rigidly attached to thetank, 'and a top plate 12 secured to the bracket and passing over the coils, the said coils being held in position between saidv members of the frame by sleeves 13 on bolts l-l.

In order to afford ready access to the coils within the tank, the latter is provided with a manhole 15 at one end.

It will be'seen from the foregoing description that joints vin the steam conducting means within the tank are entirely eliminated, which renders impossible the coinmon weakness of leaky joints whichl permit-4 car, of angitegrai heating coil located for the Agvzeeate'r portion of its length in' said lnk and having its ends Wholly. outside ereof, saidends passing through the bot- .I:- tom of said tank, stfing boxes closing the Y coil adjacent said stuing boxes anti near the p tures.

openings in the tank through Which the coil i.

passes,and means rigidly supporting said` i LnoNARD M. DE MERITT.'

v JHN H. ZNK. 

